Tweezers.



M. ENGELSMAN.

TWBEZERS.

APPLICATION nun; JAN. 13. 1908.

955,955, Patented.Apr. 26, 1910.

' UNITED STATES MONROE ENGELSMAN, OF NEW YORK, N. Y.

TWEEZERS.

Specification of Letters Patent.

Patented Apr. 26, 1910.

Application filed January 13, 1908. Serial No. 410,354.

To all whom it may concern.

Be it known that I, MONROE ENcnLsMAN, a citizen of the United States,and a resident of the borou h of Manhattan, in the city, county and tateof New York, have invented certain new and useful Improvements inTweezers, of which the following is a specification.

This invention relates to tweezers, and its object is the production ofa tweezer with an adjustable locking device. The character of theinvention is such that the tweezer may be used without operating thelocking device.

In the accompanying drawings which exemplify the invention, Figure 1represents a front elevation of a tweezer with the invention, Fig. 2shows a side View of Fig. 1, Fig. 3 represents an enlarged fragmentaryportion of Fig. 2, Fig. 4 shows a right hand side view of Fig. 3, Fig. 5is a section of Fig. 4 on the line 5, 5, Fig. 6 represents an enlargedfragmentary portion of Fig. 4, Figs. 7 and 8 show details of theinvention, Fig. 9 is a section of Fig. 8 on the line 9-9, Fig. 10 showsa partial enlarged section of Fig. 2 on the line 10, 10, Fig. 11represents a top view and section. of Fig. 10 on the line 11, 11, Fig.12 represents a front elevation of the invention slightly modified, Fig.13 is a side view of Fig. 12. Fig. 14 shows a partial side view of awatchmakers tweezer, with a further modification of the invention, andFig. 15 is a side View of Fig. 14.

Referring particularly to Figs. 1 to 11 the tweezer is shown with thebayonet shaped main legs 20, 21 having the gripping points 22, whichlatter can be made of various forms for gripping diamonds, pearls,stones, parts of watches and many other articles. On the inner face ofthe leg and adjacent to an opening 23 therein is secured the journalbracket 24. A bearing leg 25 of the latter is cut away at its lowerportion forming the shoulders 27, and leaving the engaging face 28 anddisengaging face 29, the latter face being below the level of theformer. On a bolt 30 having the head 31 and nut 32 supported in thebearing leg 25 is supported the hub 33 having the arm 34. The hub 33 iscut away, forming the shoulders 38, and the engaging face 35 anddisengaging face 36, the latter face being below the level of theformer. The arm 34 passes through the opening 23 and has pinned at itsouter end I the push button 37. On the pin 30 is supported on one endthe curved adjusting link 40, the other end of which latter is fulcrumedon the pin 41 secured in the bracket 42 extending from the main leg 21.On each of the main legs 20, 21 are fulcrumed a secondary gripping leg45 and a secondary gripping leg 46. The gripping legs 45 have each aring shaped gripping point 47 and the shoulders 48 which can bearagainst the stops 49 extending from the main legs of the tweezer. Eachof the secondary gripping legs 46 has the hooked gripping points 50 andthe shoulders 51, which latter can also bear against the stops 49. Thesesecondary gripping legs 45 and 46 are respectively adapted for holdingpearls, cushion edged stones and the like.

In Figs. 12 and 13 the invention is modificd in substituting theordinary tapered legs (30, (31 in place of the bayonet shaped legs 20,21, and omitting the secondary gripping legs 45 and 46. A spring 62 maybe fastened to the leg and bear against the leg (31 to spring themapart.

To operate the invention an object to be gripped is caught between thegripping points as 22 and then the push button 37 is pushed forwardtoward said gripping points which operation will lock the legs of thetweezers in place. \Vhen the push button 37 is pushed forward theengaging face 28 of the bearing leg 25 and the engaging face of the hub33 bear against each other and tightly hold the adjusting link 40between the rear face 38 of the boss 25 and the inner face 39 of thehead 31 of the bolt 30. When 1 the object between the gripping points ofthe main legs of the tweezer 18 to be de tached the push button 37 ismoved down when the disengaging faces 29 and 30 come opposite eachother, which will cause the main legs to spring apart and disengage theobject gripped between their gripping points. Should it be desired touse the tweezer without the locking device the push button 37 is left inits lowered position. It will be noted that the locking device isbetween the main legs of the tweezer and operated by a push button onthe outside of one of them.

In Figs. 14, 15 are represented the legs 7 0. 71 of a watchmakerstweezer. The leg 70 has an offset 72 and the leg 71 has an offset 73,which latter is concaved on its outer surface. An adjusting link 8similar to 4:0 is

fulcrumed on a pin 79. On the inner face of the offset 72 is secured thejournal bracket 80 similar to 24 and Which supports a bolt 81 withappurtenances, similar .to bolt 30 and its appurtenances to form alocking device for the link 78. .A boss is supported on the bolt 80which has an arm 82 and'to the latter is pinned the heart shapedpush-button 83 similar to 37. To the ends of the legs 70 71 are securedbrackets 84; preferably of re silient material to hold an object likethe gem holder described in my U. S, Patent No. 854,158 dated May 21, 1907.

It is evident-that the tweezer is, useful for the watchmaker, surgeon,mechanic, jeweler and may be used for many other purposes,

Having described my invention I claim:

1. In a tweezer, the combination of an adjusting link fulcrumed to oneof the legs thereof and located wholly between the legs of the tweezer,a bracket extending from the inner face of the other leg of the tweezer,and means to clamp said bracket and link togetheri 2. In a tweezer thecombination of an ad: justing link fulcrumed to one of the legs thereof,a bracket extending from the inner face of the other leg, an engagingface formed on said bracket, a boltsupportecl in an opening in saidbracket and extending through the link, a head on the bolt bearingagainst said link, a hub supported on the bolt, an engaging face on thehub to coact with the engaging face on the bracket, a nut on the boltbearing against the hub 0n the face opposite its engaging face, and anarm on the h b x ending h ough an open ng in the legof the tweezer towhich it is adjacent.

3. In a tweezer the combination of an adjusting link fulcrumed to one ofthe legsthereof, a bracket between the legs of the tweezer and extendingfrom the other leg,

an engaging and disengaging face formed on the said bracket the latterface below the former, a bolt supported in an opening in said bracketand extending through said adjust-' a ing link, a head on the boltbearing against the outer side of the link, a'hub on said bolt,

an engaging and disengaging face on the huh, the latter face below theformer. of said hub, a nut on said bolt bearing against the outer sideof the hub, an arm extending from;

the hub and passing through an opening in? the leg of the tweezer towhich it is adj acent,;

and a push button on the, arm;

L'In a tweezer the combination of an ad V bracket, a bolt supported insaid bracket and extending through said adjusting link, a:

hu on said olt having an engaglng face,

an arm extending from said hub and pass-r ing throughflIl p n ng in oneof the-l s h Weezer, a

Sign d at the borough "of Manhattan in the county of New York and Stateof New York, this 6th day of January A. D. 1908.

MONROE ENGELSMAN.

Witnesses:

EMANUEL W I E, ALFRED A- HEVIA-

